collection (1) 썸네일형 리스트형 JDK 5.0 API - Collection<E>(해석중) public interface Collectionextends IterableThe root interface in the collection hierarchy. A collection represents a group of objects, known as its elements. Some collections allow duplicate elements and others do not. Some are ordered and others unordered. The JDK does not provide any direct implementations of this interface: it provides implementations of more specific subinterfaces like Set a.. 이전 1 다음